Why is a = (a+b) - (b=a) a bad choice for swapping two integers?

I stumbled into this code for swapping two integers without using a temporary variable or the use of bitwise operators.

int main(){

    int a=2,b=3;
    printf("a=%d,b=%d",a,b);
    a=(a+b)-(b=a);
    printf("\na=%d,b=%d",a,b);
    return 0;
}

But I think this code has undefined behavior in the swap statement a = (a+b) - (b=a); as it does not contain any sequence points to determine the order of evaluation.

My question is: Is this an acceptable solution to swap two integers?